arrange the following in order of ionization energy, Na, Na+, C, O​

The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.

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Answer: Whats the question?

Answer:

2, 13, 8, 10

Explanation:

8 carbon, 26 oxygen, 20 hydrogen total on each side.

Enthalpy change is the heat that evolved or got absorbed in a reaction mixture. The enthalpy change for the reaction is -137 kJ.

Hess's law states that the enthalpy for the whole reaction will be equal to the summation of all changes that are independent of the steps of the reaction.

First, arrange all the reactions and balance them, first the data of equation 1 is rearranged:

NO₂ must be on the reactant side and must be multiplied by 3/2 so that 3 moles of NO are balanced.

3 NO₂ (g) → 3 NO (g) + 3/2 O₂ (g),    ΔH = + 174 kJ

Now, for equation 2: the moles of HNO₃ required is 2 so the whole equation will be divided by 2 as,

N₂ (g) + 5/2 O₂ (g) + H₂O (l) → 2HNO₃ (aq),      Δ H = -128 kJ

Now, for equation 3: N₂ and O₂ should be eliminated and reversed as,

2NO (g) → N₂(g) + O₂(g)    ΔH = -183 kJ

Now, to determine the enthalpy the rearranged equation 1, 2, and 3 are added to get the final equation:

3NO₂ (g) + H₂O (l) → 2HNO₃ (aq) + NO (g)

Δ H = 174 - 128 - 183

= -137 kJ

Therefore, -137 kJ is the enthalpy change.

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Answer:

B

Explanation:

If the plants in a biome grow very tall, then statement b The biome receives abundant sunlight most likely describes the abiotic factors in the biome.

An abiotic factor in a biome or ecosystem can be defined as any nonliving variable that helps to shape the features of the are under study, which include for example, temperature, sunlight, water availability for the species living in the area, etc.

An abiotic factor in a biome or ecosystem is characterized to be the counterpart of the biotic living factors in order to shape the homeostasis of the ecosystem.

Therefore, with this data, we can see that an abiotic factor in a biome is any nonliving factor that helps to form the features of a particular ecosystem such as sunlight in the case of areas with high biodiversity.

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The total amount of hydrogen gas generated is 9.76 L, under the condition that 15.9 g of hydrochloric acid reacts with excess zine metal.

Furthermore the balanced chemical equation for the reaction between hydrochloric acid and zinc metal is:
2HCl + Zn → ZnCl₂ + H₂
The molar mass of HCl is 36.46 g/mol.
Then, 15.9 g of HCl is equivalent to 15.9 g / 36.46 g/mol = 0.436 mol of HCl.
As per  the balanced chemical equation, 1 mole of HCl reacts with 1 mole of Zn to produce 1 mole of H₂ gas.
Hence, 0.436 mol of HCl will produce 0.436 mol of H₂ gas.
In Stp (Standard Temperature and Pressure), one mole of any gas occupies 22.4 L.
So, 0.436 mol of H₂ gas will occupy:
0.436 mol × 22.4 L/mol = 9.76 L (approx)
Then, approximately 9.76 L of hydrogen gas will be produced when 15.9 g of hydrochloric acid reacts with excess zinc metal at STP.
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Answer:

When temperature increases the volume decreases too

Explanation:

In chemical read tion when the temperature increase it compress the volume of the chemical. I can be measured in degree centi grade

Answer:

We need more? What else is in the question? This is unanswerable.

Explanation:

Answer:

Control group

Explanation:

A period 3 element is one of the chemical elements in the third row (or period) of the periodic table of the chemical elements. The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behaviour of the elements as their atomic number increases: a new row is begun when the periodic table skips a row and a chemical behaviour begins to repeat, meaning that elements with similar behaviour fall into the same vertical columns. The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon. The first two, sodium and magnesium, are members of the s-block of the periodic table, while the others are members of the p-block. All of the period 3 elements occur in nature and have at least one stable isotope.[1]

The molarity of the oxalic acid solution titrated with the potassium permanganate solution is 0.053 M

To determine the molarity of the solution, stoichiometric relationships and rules of three are used.

2 KMnO4 + H2C2O4 → 2 CO2 + K2O + 2 MnO3 + H2O

If there are 0.09113 mol of KMnO4 in 1 liter of solution then in 0.2324 liters there are:

X moles of KMnO4 = 0.02324 x 0.09113 x 1

X moles of KMnO4 = 0.0021 mole

If 2 mol KMnO4 combines with 1 mol H2C2O4 then 0.0021 mol KMnO4 combines with:

X mol H2C2O4 = 0.0021 mol KMnO4 x 1 mol / 2 mol KMnO4

X mol H2C2O4 = 0.0021 x 1 / 2 = 0.001 mol

If there are 0.001 mol H2C2O4 in 0.02 liters of solution then in 1 liter there are:

X mol H2C2O4 = 1 x 0.001 / 0.02 = 0.053

Therefore, the molarity of H2C2O4 is 0.053M

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Answer:

Divide the time value by 1000

Explanation:

7 Ms = 0.007s

Answer: empirical formula of any compound is the simplest proportion of elements in that compound (i.e. the composition of elements in compound is in simplest ratio ) .It does not provide actual formula of any compound.

molecular formula=n-factor * empirical formula

molecular formula - C6H12O6 (glucose)

empirical formula - CH2O

C6H12O6 * CH2O

Answer:

I think it's B

Explanation:

I would say Phenolphthalein

The mass of the percent of the 10 g solute in the 105 g solvent is 8.69 %.

The mass of the solute = 10 g

The mass of the solvent = 105 g

The mass of the solution = 10 g + 105 g

The mass of the solution = 115 g

The mass of the percent is expressed as :

The mass of percent = ( mass of solute / mass of solution ) × 100 %

The mass of solute = 10 g

The mass of solution = 115 g

The mass of percent = ( 10 / 115 ) × 100 %

The mass of percent = 8.69 %

Thus, the mass of percent is 8.69 % and the mass of solute is 10 and the mass of the solution is 115 g.

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Answer:  The image from the question has the correct answers.

Explanation:  

As summarized in the attached table.

Option (a) is correct. The HCL will protonate 0.05 M of the TRIS base form if equal volumes of 0.1 M HCL and 0.2 M TRIS are mixed together.

We can prepare a buffer solution by adding a strong acid as a limiting reactant to the weak base component to produce a comparable amount of the weak conjugate acid. The strong acid must be a limiting reactant so that it does not consume all of the weak base component. Tris is a an organic compound with 3 alcohol groups and an amine group. This amine group can act as a base similar to that of ammonia. It will accept a proton from the strong acid HCL to produce the weak conjugate acid Tris + H:

          TRIS base + HCL → TRIS H+ + Cl−

I           0.1 mole       0.2 M      0

C          -0.1                -0.1         0.1

L             0                   0.1         0.1

we know that the n= mole / volume (l)

                                 = 0.1 / 2 = 0.05 M

The HCL reactant is of lower concentration. Therefore when mixed in equal volumes with Tris the HCL will be the limiting reactant. This will result in an equal number of moles of Tris (weak base) and its conjugate Tris + H (weak acid). Such a mixture constitutes a buffer.

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To graph the function g(x) = f(-x), you can start with the graph of f(x) and then reflect it about the y-axis.

To find the graph of the function g(x) = f(-x), we can start with the graph of the function f(x) and then reflect it about the y-axis.

If the graph of f(x) is symmetric with respect to the y-axis, meaning it is unchanged when reflected, then g(x) = f(-x) will have the same graph as f(x).

However, if the graph of f(x) is not symmetric with respect to the y-axis, then g(x) = f(-x) will be a reflection of f(x) about the y-axis.

In either case, the resulting graph of g(x) = f(-x) will be symmetric with respect to the y-axis.

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Answer:

0.3 hours of oxygen use will be obtained from the 4.7 L tank.

Explanation:

The rule of three or is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them. That is, what is intended with it is to find the fourth term of a proportion knowing the other three.

To solve a direct rule of three, where a, b and c are known data and x is the value to be calculated  the following formula must be followed:

a ⇒ b

c ⇒ x

So \(x=\frac{c*b}{a}\)

A value of 15 L/hour indicates that 15 L is consumed in 1 hour. The following rule of three can then be applied: if the average basal rate of oxygen consumption for an adult is 15 L in 1 hour, then 4.7 L in how long will it be consumed?

\(time=\frac{4.7 L*1 hour}{15 L}\)

time= 0.3 hours

0.3 hours of oxygen use will be obtained from the 4.7 L tank.

Answer:

B. physical property is the answer

Explanation:

A reaction with another element

other choices are physical property

Answer:

A. reaction with another element

Answer:The pressure of 1.0 x 10^-5 mm Hg is equivalent to 1.33322 x 10^-3 Pa.

Explanation:

The pressure of 1.0 x 10^-5 mm Hg is equivalent to 1.33322 x 10^-3 Pa.

Answer:

true i think but dont take my word for it.✌

According to the electronic configuration, carbon has 4 valence electrons that makes it a very stable atom that readily bonds.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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Answer:

C

The products of photosynthesis are the reactants of cellular respiration.

Explanation:

it is correct on study island

Based on the above information, photosynthesis and cellular respiration are related because: C. The products of photosynthesis are the reactants of cellular respiration.

Photosynthesis can be defined as a biological and chemical process through which green plants (autotrophs) transform light energy (sunlight) into chemical energy.

In Science, photosynthesis is given by the following chemical reaction:

            \(Carbon \;dioxide + water + light \;energy \rightarrow sugar + oxygen\)

In Science, cellular respiration is given by the following chemical reaction:

     \(sugar + oxygen \rightarrow carbon \;dioxide + water + chemical\; energy\)

In conclusion, we can deduce from the above information that the products of photosynthesis (sugar and oxygen) are the reactants of cellular respiration.

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Answer:

Explanation:

Electric current in a wire, where the charge carriers are electrons, is a measure of the quantity of charge passing any point of the wire per unit of time. ... Current is usually denoted by the symbol I. Ohm's law relates the current flowing through a conductor to the voltage V and resistance R; that is, V = IR.

Answer: O how well electrical energy moves in a circuit

Explanation: Electric current is a measure of the flow of charge, as, for example, charge flowing through a wire. Electric current in a wire, where the charge carriers are electrons, is a measure of the quantity of charge passing any point of the wire per unit of time.

Answer:

There are \(5.08\times 10^{22}\ \text{molecules of}\ C_6H_6\)  

Explanation:

In this problem, we need to find the number of molecules in \(8.437\times 10^{-2}\) mol of \(C_6H_6\).

The molar mass of \(C_6H_6\) is \(6\times 12+1\times 6=78\ g/mol\)

No of moles = mass/molar mass

We can find mass from above formula.

\(m=n\times M\\\\m=8.437\times 10^{-2}\ mol\times 78\ g/mol\\\\m=6.58\ g\)

Also,

No of moles = no of molecules/Avogadro number

\(N=n\times N_A\\\\N=8.437\times 10^{-2}\times 6.023\times 10^{23}\\\\N=5.08\times 10^{22}\ \text{molecules}\)

Hence, there are \(5.08\times 10^{22}\ \text{molecules of}\ C_6H_6\)  

Answer:

Volume = 3.4 L

Explanation:

In order to calculate the volume of CO₂ produced when 15.2 g of CaCO₃ is heated, we need to first write out the balanced equation of the thermal decomposition of CaCO₃:

CaCO₃ (s) + [Heat] ⇒ CaO (s) + CO₂ (g)

Now, let's calculate the number of moles in 15.2 g CaCO₃:

mole no. = \(\mathrm{\frac{mass}{molar \ mass}}\)

                 = \(\frac{15.2}{40.1 + 12 + (16 \times 3)}\)

                 = 0.1518 moles

From the balanced equation above, we can see that the stoichiometric molar ratios of CaCO₃ and CO₂ are equal. Therefore, the number of moles of CO₂ produced is also 0.1518 moles.

Hence, from the formula for the number of moles of a gas, we can calculate the volume of  CO₂:

mole no. = \(\mathrm{\frac{Volume \ in \ L}{22.4}}\)

⇒ \(0.1518 = \mathrm{\frac{Volume}{22.4}}\)

⇒ Volume = 0.1518 × 22.4

                 = 3.4 L

Therefore, if 15.2 g of CaCO₃ is heated, 3.4 L of CO₂ is produced at STP.